Jesús Martínez Frías

Fifteen years ago, the European Space Agency's (ESA) Mars Express probe revealed the presence of large deep deposits on Mars, in an area called the Medusae Fossae Formation (MFF), located at its equator. Now, new data from the probe's MARSIS radar indicate that the deposits are deeper than previously thought - up to 3.7 kilometers thick - and include both ice-rich and dusty layers. The results are published in Geophysical Research Letters.

Based on a model, a study theorises that Mars may have been habitable for microorganisms 3.7 billion years ago, according to the journal Nature Astronomy.

As planned, the DART (Double Asteroid Redirect Test) mission has hit the asteroid Dimorphos, which orbits a larger asteroid, Didymos. Neither is a threat to Earth. This is the first planetary defence test mission designed to change the orbit of an asteroid, launched by NASA and the Johns Hopkins APL laboratory, with Spanish participation. Scientific teams will study with ground-based telescopes how much the orbit of Dimorphos will change around Didymos after the collision.

A study based on observations of the Greenland ice sheet, published in Nature Communications, suggests that there may be shallow liquid water on Jupiter's moon Europa. The finding could provide insights into the geophysical processes that formed the moon.